✨ Best Answer ✨
●＋80＝x＋×
x＝80＋●－×…①
2●＋80＝2×
2(●－×)＝－80
●－×＝－40…②
①に②を代入して
x＝80－40＝40
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✨ Best Answer ✨
●＋80＝x＋×
x＝80＋●－×…①
2●＋80＝2×
2(●－×)＝－80
●－×＝－40…②
①に②を代入して
x＝80－40＝40
Users viewing this question
are also looking at these questions 😉
ありがとうございます！
助かりました✩